feat: Add `Actor` method `use_state` #122

Job	Run time
PR title check	5s
Code checks / Actions lint check	28s
Code checks / Spell check	6s
Doc checks / Doc checks / Docs check	1m 12s
Code checks / Lint check / Lint check (3.12)	11s
Code checks / Lint check / Lint check (3.11)	14s
Code checks / Lint check / Lint check (3.10)	13s
Code checks / Lint check / Lint check (3.13)	11s
Code checks / Type check / Type check (3.10)	9s
Code checks / Lint check / Lint check (3.14)	15s
Code checks / Type check / Type check (3.11)	10s
Code checks / Type check / Type check (3.14)	12s
Code checks / Type check / Type check (3.13)	14s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	55s
Code checks / Type check / Type check (3.12)	15s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	50s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	53s
Tests / Unit tests / Unit tests (windows-latest, 3.10)	1m 19s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	1m 23s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.10)	55s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	1m 26s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	1m 20s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	54s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	1m 24s
Tests / Integration tests / Integration tests	0s
	15m 14s

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